Shopping at the mall one afternoon. Dressed much more conservatively than you - white blouse, blue jeans, flats, etc. - and a big guy walks up to me and spits in my face and says, "You're a disgrace!" This was right in the middle of the mall and EVERYONE is staring at me and I'm covered in some guys spit and shaking in fear and embarassment.

Nothing like that has happened to me in a very long time, but I can never forget that day.